Electroencephal stimulation helps to look at others better

Not only the eyes, the brain also plays an important role in a person's assessment of the beauty of the enemy.

The scientific group, from the California Institute of Technology, uses a stimulating technique behind the inner region of the brain (TDCS). Electrodes are embedded all over the participant's scalp, then a small electric current passes through the brain, but does not cause any discomfort or pain.

Artwork: representational

Participants were asked to assess the attractiveness of some faces, at the time before and after the brain was stimulated by the technique of DdCS . While participants assessed, a magnetic resonance scanner (fMRI) will test, to help researchers observe changes that occur in brain activity.

Besides, another group was chosen to perform a fake experiment, although the electrodes were still plugged into the scalp, but there was no electric current flowing through the brain during the process.

As a result, people in the first group after being brainstormed rated the faces more attractive than before. In the fake experimental group, participants assessed the level of attractiveness of the same faces before and after.

"This effect can occur by taking drugs. However, the drug does not work on a specific area, but it affects the whole brain. Therefore may cause some unintended consequences" , Vikram Chib, PhD, led the study.

Scientists hope the study will help treat mental illnesses related to difficulties in evaluating beauty. However, more studies are needed to determine the duration of the long-term effect after stimulation.